The button battery is a battery with a unique shape and size. The whole shape is like a small button. However, no matter what type of battery, it needs to be tested for safety. The button battery is no exception. Considering that many people are concerned about the button battery The safety test is not particularly understood. Next, let's introduce the general aspects of the button battery safety test.In fact, the test content of the button battery safety test is similar to that of other batteries. The test content includes: vibration, squeeze, acupuncture, overcharge, short circuit, drop, heating, heavy object impact, etc., then connect Next, I will briefly talk about the specific test content of overcharge test, short circuit test, needle test, squeeze test, and heavy object impact test.

    Button battery overcharge test: First, fully charge the button battery, and then overcharge according to 3c to conduct an overcharge test. If the voltage of the battery rises to a certain voltage when the battery is overcharged, we will stabilize for a period of time, and then increase the voltage of the battery rapidly when the time comes. At this time, the voltage of the battery has risen to a certain limit. The top hat of the battery is broken and the voltage drops to ov. The battery can pass the test without fire or explosion.

    Button battery short-circuit test: After the button battery is fully charged, the positive and negative electrodes of the battery are short-circuited with resistance wires.

    Acupuncture test of button battery: Place a fully charged battery on a flat surface and pierce the battery with a steel needle with a diameter of 3mm in the radial direction. The test battery can pass the test without fire or explosion.

    Squeeze test of button battery: Place the fully charged battery on a flat surface, apply a certain squeezing force by the hydraulic cylinder, and then squeeze the battery by the plane of the steel rod. Once squeezed, the pressure reaches the maximum value. Stop squeezing, if the battery does not catch fire, just don't explode.

    Button battery heavy object impact test: After the battery is fully charged, place it on a flat surface and use a steel column to vertically place the center of the battery. If a certain weight of weight falls freely on the steel column above the battery, if the battery is still It can pass the test if it catches fire or does not explode.

    Overcharge test, short circuit test, acupuncture test, squeeze test, and heavy object impact test are all test contents of button battery safety test. If these test items can be carried out meticulously, the quality of button battery will be greatly improved. This also guarantees the normal use of button batteries. and ACEY provides all kinds of the battery environment testing machine.